Sixty people were arrested following an Orange parade in Glasgow on Saturday, police said.
Police had to draft in extra officers to the city centre during the parade
Strathclyde Police said 12 were held for sectarian offences, one for knife possession, one for having an offensive weapon and the rest for minor offences.
Police said the majority of the 15,500 marchers were well behaved, but that some onlookers had too much to drink.
Ian Wilson, of the Orange Order in Scotland, said it would "take a while" to ensure troublemakers stayed away.
The arrests came after police warned they would crack down on bigots at the County Grand Orange Lodge Parade, which involved 182 city lodges and 90 bands.
Assistant Chief Constable Kevin Smith said: "It would be easy to say that this was better than previous years. However, we are still left with a situation whereby 60 people were arrested.
"There has been abusive, drunken and sectarian behaviour in the streets of Glasgow, significant disruption to the city, and I have had to bring in literally hundreds of police officers from all over the force area to police this event."
But he added: "In general, I am pleased with the smooth running of the march, in particular the timings and schedule.
"This was due to the co-operation by the march organisers who arranged this event in close consultation with the police and Glasgow City Council."
Last year's procession saw 20 people arrested, 13 of them for sectarian offences.
Mr Wilson said the parade, from Blythswood Square to Glasgow Green, went well from organisers' point of view and that disruption was almost always caused by "hangers-on".
He said the message that troublemakers should stay away would "take a while to get through".
"We maintain our right to parade and celebrate our values, traditions and beliefs but we fully accept that we have a responsibility to celebrate with due decorum and consideration for others."
Mr Wilson added: "Our problem is that even one arrest will tarnish the image of everybody involved.
"We are happy for police to get tough on people who won't behave."
All of those arrested will be the subject of reports to the procurator fiscal.